I am trying to automate some of the testing I have been doing manually on PCB's as they are being built. This is for a low-volume operation but the tests are taking a lot of time since each one has a lot of points that need to be verified for voltage. There are other tests that are being done, but for the sake of keeping this discussion reasonable - I am only looking at practical ways to measure and log about 20-30 points for DC voltages.
Setup:
I have been using LabView - seems really great so far. Tried Python and although I could eventually get it done, it is slow to dev and maintain. In the end, the solution will be MUCH more than capturing a few dozen voltages so LabView seemed like a good choice.
I have been manually probing but in the process of putting together a bed of nails for all the PCB's involved (3 at the moment). They are double sided PCBs and the bed of nails is double sided.
The goal is to use relays or other switching so I can use a single DMM to do the measurements. I don't really know where to start. So far, I looked at Keithley DMM with data acquisition slots - the 2700 series. I found a few GPIB relay boxes. I looked at building a PXI chassis with National Instruments DMM's. I saw some PXI relay cards.
Has anyone done tests like this before? Straight DC, multi-channel automated tests? Are relays the way to go to feed a single meter?